How come that when I edit a DDS file and export it again the file details are not saved.
Therefore not showing a proper windows thumbnail for view but a defailt Photoshop icon.
How can I (re)solve this?
Hi @post19! My guess is that the DDS previewer installed on your system probably supports older BC formats such as BC1-BC3, but not newer (~DirectX 10) formats such as BC7.
I’ve attached 2 copies of the same image, one compressed with BC3, and the other compressed as BC7. Do you see a preview for the BC3 file, but not for the BC7 file?
pebbles-nvtt-bc3.dds (569.7 KB)
pebbles-nvtt-bc7.dds (569.7 KB)
Another way to check: if you open the original DDS file in the standalone version of the Texture Tools Exporter, you should be able to click on the Input Information pane, which will show you the DXGI format of the original image, like this. Could you tell me what format the original image has?
My best guess for the fix is to update the program that’s generating the DDS image previews – that’s most likely the program that opens when you double-click on a DDS file in Windows Explorer. RenderDoc, Visual Studio, and Paint.NET have all had updates in the last few years that add support for BC7 texture previews. There are still some formats they don’t support yet - ASTC and RXGB are probably the main ones - but updating them (if you’re using them as a previewer) should make previews appear for most DDS files.
Hope this helps!
–Neil